Products of the tungsten industry include mainly tungsten concentrates and intermediate products, such as ferro-tungsten, tungsten acid, sodium tungstate, WO3, blue tungsten oxide, APT, ammonium metatungstate and tungsten powder. Heteropoly tungstate is still being studied in fine chemical industry and has not become a commondity.
In 1949~1997, China produced a total of 1.847 million tons of tungsten concentrates, of which 873,000 tons were exported, earning 3.093 billion US dollars, and turned over to the State 680 million yuan in tax and profits. The tungsten industry of the country played a very important part in the national economic construction and, especially in the initial stage of the founding of the People’s Republic of China, made great contributions to the earning of foreign exchange and the repayment of foreign debts for the country.Henan Hongxing Mining Machinery Co., Ltd is the professional manufacturer of complete sets of mining machinery, for example,jaw crusher,jaw breakers Welcome all of you to visit our official website.ore vibrating feeder:http://www.hx-crushers.com/p22.html
Production of tungsten concentrates is concentrated chiefly in 6 provinces or autonomous regions, which are, in order of increasing output since 1990, Hunan, Jiangxi, Guangdong, Yunnan, Fujian, and Guangxi. They produced over 95% of China’s total tungsten concentrates, and the aggregate production of three provinces (Hunan, Jiangxi and Guangdong) accounted for 88% of the total (production of 1990~1996) (see Table 3.12.3). Besides, Hubei, Zhejiang, Anhui, Gansu and Xinjiang also produced tungsten concentrates, but their production was low.